java访问nfs,根目录下文件夹没办法进入

Question

最近在实验使用java读取指定路径下的文件，发现没办法进入共享根目录下的文件夹
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;

import com.sun.nfs.XFileExtensionAccessor;
import com.sun.xfile.XFile;
import com.sun.xfile.XFileInputStream;
import com.sun.xfile.XFileOutputStream;
import com.sun.xfile.XFileWriter;
import net.sf.jftp.system.logging.Log;

import java.io.*;

/**

• Created by fd on 2017/8/14.
  */
  public class NFS {
  String url;
  XFile xfile;
  public void NFSconnection(String ip,String dir)
  {
  url = "nfs://" + ip + "/" + dir;//创建连接
  xfile = new XFile(url);
  //调用exists()判断是否连接成功
  if (xfile.exists()) {
  System.out.println("URL is OK!");
  } else {
  System.out.println("URL is Bad!");
  return;
  }

  }
  public void test(String pathname) throws IOException {
  String[] fileList = xfile.list();//缺少这一句的话，会出现找不到文件的错误

  XFile temp = new XFile(url+"/"+pathname);
  
  XFileInputStream in = new XFileInputStream(temp);
  int lent = 0;
  byte[] buf = new byte[200];
  while((lent = in.read(buf))>0){
      System.out.println(new String(buf,0,lent));
  }
  

  }

  public static void main(String[] args) throws IOException {
  String ip ="172.19.152.32";
  String dir = "nfs";
  NFS nfs = new NFS();
  nfs.NFSconnection(ip,dir);
  nfs.test("ss");
  }
  }

Answer 1

文件夹设置了正确的权限了没有，另外你是网络路径？要先建立共享连接。